INGREDIENTS
Bars:
1 cup
salted butter, slightly softened
3/4 cup
light brown sugar
1/2 cup
granulated sugar
1 tsp
vanilla extract
2
large eggs
1 1/2 cups
all-purpose flour
1 tsp
baking soda
1/8 tsp
ground cinnamon
1 1/2 cups
quick cooking oats
Frosting:
1 stick
salted butter, slightly softened
1/4 cup
heavy whipping cream
1 tsp
vanilla extract
7 oz
jar marshmallow creme
3 cups
powdered sugar